Hot and Sunny Skies Await in Winnipeg — Summer’s Not Done Yet

Winnipeg – WEATHER – If your Labour Day plans are taking you west into Winnipeg, pack your sunglasses and sunscreen — and maybe leave the jacket behind. The Prairie city is kicking off the long weekend with warm, sunny weather and rising temperatures, with humidex values making it feel closer to mid-summer than early September. Fog patches this morning will give way to clear skies and soaring daytime highs well into the 30s.

Today’s Weather Overview

Current Conditions

Observed at: Winnipeg Richardson International Airport
Time: 7:00 AM CDT, Thursday, August 28, 2025

• Temperature: 13.2°C

• Condition: Shallow Fog

• Wind: East-southeast at 7 km/h

• Humidity: 100%

• Dew Point: 13.2°C

• Barometric Pressure: 102.1 kPa (Rising)

• Visibility: 16 km

Patchy fog will dissipate quickly as the sun rises, making way for a bright and sunny Thursday across Winnipeg. Expect a significant temperature jump by mid-morning.

Today’s High: 28°C
Humidex: 32 — it will feel hot, especially in the afternoon
UV Index: 6 or High — sun protection strongly recommended

Tonight: Clear skies with a comfortable overnight low of 13°C

Long Weekend Forecast

Expected Conditions

Friday, August 29:
Mainly sunny and hot. Daytime high of 31°C, with a humidex of 35°C, making it one of the hottest days of the month. Winds will stay light, adding to the still, dry heat.

Friday Night: Clear and warm, with a low of 15°C

Saturday, August 30:
Another scorcher. Sunny with a high of 30°C, continuing the stretch of late-summer heat.

Saturday Night: Clear skies persist, with an overnight low of 15°C

Sunday, August 31:
Still sunny and warm, high of 31°C — ideal for lake days, park visits, or barbecues.

Sunday Night: Clear and mild, with a low of 16°C

Labour Day, Monday, September 1:
A mix of sun and cloud with a high of 28°C — still warm, though clouds may start building later in the day.

Monday Night: Cloudy periods with a 60% chance of showers. Overnight low of 14°C

Wardrobe Recommendations

• Today: Start with a light layer this morning, but expect to shed it by mid-morning. T-shirts and shorts are the way to go by midday.

• Friday to Sunday: Summer gear all the way — breathable fabrics, hats, sunglasses, and sunscreen are must-haves. Carry a refillable water bottle to stay hydrated in the heat.

• Labour Day Monday: Slightly cooler and cloudier by the evening, so a light jacket might come in handy if you’re out late.

Weather Trivia

Did You Know?
Winnipeg holds the title as one of the sunniest cities in Canada, averaging over 2,300 hours of sunshine annually. That sunshine is on full display this Labour Day weekend, as the city enters one of its warmest late-summer stretches in recent years — with temperatures more typical of early July than the end of August.